LINQ's fluent syntax and query expressions

LINQ provides two main syntaxes: fluent syntax and query expression syntax. While both are effective ways to write LINQ queries, which syntax to choose will affect your coding style and efficiency.

Advantages of query expression syntax

Query expression syntax has the following advantages:

• Easy of use: Query expressions are similar to standard SQL queries, and they are more familiar and intuitive for database developers.
• Multiple Range Variables: The query expression allows multiple range variables, which helps with "let" statements, joins, and queries with multiple "from" clauses.
• Clarity: For complex queries that contain multiple clauses and joins, query expressions can provide higher clarity and readability.

Advantages of smooth grammar

On the other hand, fluent grammar also offers different advantages:

• Simplicity: Fluent syntax is usually more concise than query expressions, especially for simple queries.
• More operators: The smooth syntax shows the full range of LINQ operators, allowing for greater flexibility in query construction.
• Mixed use capability: Fluent syntax can be used in conjunction with query expressions to take advantage of the two approaches.

Select the appropriate grammar

The two grammars themselves have no advantages and disadvantages. The best choice depends on the specific query and developer preferences.

Store to use query expression syntax:

• Query containing multiple range variables
• Query containing join
• Query containing complex clauses

Something recommended to use fluent syntax:

• Simple query
• Requires a full range of query using the LINQ operator
• Queries that require a mix of query and method syntax